Tag Archives: accretion disc

Gemini Legacy has captured the colourful and dramatic tale of a life-and-death struggle between two galaxies interacting. All the action appears in a single frame, with the stunning polar-ring galaxy NGC 660 as the focus of attention....

Researchers have for the first time measured the radius of a black hole at the centre of a distant galaxy — the closest distance at which matter can approach before being irretrievably pulled into the black hole...